[scponly] Transmission times

[Lou Piccoli]

I know that this question has probably been asked many times before but I am 
new to the list and need the info quickly if possible, so thanks for putting 
up with me in advance :)

Since moving to scponly from ftp, transmission times for the same amount of 
data has tripled at best. Can anyone tell me why the increase in time to 
transmit, is it because of the packet confirmations being done, are they 
being done?

Example:
to ftp 75 100Mb files it took  20hrs

to scp 75 100Mb files it takes 70+

Can someone tell me what causes?

Thanks
Lou